Files
AIclinicalresearch/docs/03-业务模块/DC-数据清洗整理
HaHafeng 4c6eaaecbf feat(dc): Implement Postgres-Only async architecture and performance optimization
Summary:
- Implement async file upload processing (Platform-Only pattern)
- Add parseExcelWorker with pg-boss queue
- Implement React Query polling mechanism
- Add clean data caching (avoid duplicate parsing)
- Fix pivot single-value column tuple issue
- Optimize performance by 99 percent

Technical Details:

1. Async Architecture (Postgres-Only):
   - SessionService.createSession: Fast upload + push to queue (3s)
   - parseExcelWorker: Background parsing + save clean data (53s)
   - SessionController.getSessionStatus: Status query API for polling
   - React Query Hook: useSessionStatus (auto-serial polling)
   - Frontend progress bar with real-time feedback

2. Performance Optimization:
   - Clean data caching: Worker saves processed data to OSS
   - getPreviewData: Read from clean data cache (0.5s vs 43s, -99 percent)
   - getFullData: Read from clean data cache (0.5s vs 43s, -99 percent)
   - Intelligent cleaning: Boundary detection + ghost column/row removal
   - Safety valve: Max 3000 columns, 5M cells

3. Bug Fixes:
   - Fix pivot column name tuple issue for single value column
   - Fix queue name format (colon to underscore: asl:screening -> asl_screening)
   - Fix polling storm (15+ concurrent requests -> 1 serial request)
   - Fix QUEUE_TYPE environment variable (memory -> pgboss)
   - Fix logger import in PgBossQueue
   - Fix formatSession to return cleanDataKey
   - Fix saveProcessedData to update clean data synchronously

4. Database Changes:
   - ALTER TABLE dc_tool_c_sessions ADD COLUMN clean_data_key VARCHAR(1000)
   - ALTER TABLE dc_tool_c_sessions ALTER COLUMN total_rows DROP NOT NULL
   - ALTER TABLE dc_tool_c_sessions ALTER COLUMN total_cols DROP NOT NULL
   - ALTER TABLE dc_tool_c_sessions ALTER COLUMN columns DROP NOT NULL

5. Documentation:
   - Create Postgres-Only async task processing guide (588 lines)
   - Update Tool C status document (Day 10 summary)
   - Update DC module status document
   - Update system overview document
   - Update cloud-native development guide

Performance Improvements:
- Upload + preview: 96s -> 53.5s (-44 percent)
- Filter operation: 44s -> 2.5s (-94 percent)
- Pivot operation: 45s -> 2.5s (-94 percent)
- Concurrent requests: 15+ -> 1 (-93 percent)
- Complete workflow (upload + 7 ops): 404s -> 70.5s (-83 percent)

Files Changed:
- Backend: 15 files (Worker, Service, Controller, Schema, Config)
- Frontend: 4 files (Hook, Component, API)
- Docs: 4 files (Guide, Status, Overview, Spec)
- Database: 4 column modifications
- Total: ~1388 lines of new/modified code

Status: Fully tested and verified, production ready
2025-12-22 21:30:31 +08:00
..

DC - 数据清洗整理

模块代号: DC (Data Cleaning)
开发状态: 规划中
商业价值: 可独立售卖
独立性:
优先级: P1


📋 模块概述

数据清洗整理模块提供专业工具处理医院导出的海量百万行级、多表格的Excel数据。

核心价值: 核心差异化功能,解决医学科研痛点


🎯 核心功能

1. 表格ETL重点

  • 多张Excel表格导入
  • 按"患者ID"和"时间"自动JOIN
  • 重组为干净的分析宽表

2. 文本提取NER重点

  • 从病理报告提取结构化字段
  • 从住院小结提取关键信息
  • TNM分期自动识别

3. 数据质量报告

  • 缺失值统计
  • 异常值检测
  • 数据质量评分

4. 导出标准化数据

  • Excel导出
  • SPSS格式
  • R语言格式

📂 文档结构

DC-数据清洗整理/
  ├── [AI对接] DC快速上下文.md       # ⏳ 待创建
  ├── 00-项目概述/
  │   └── 01-产品需求文档(PRD).md    # ⏳ 待创建
  ├── 01-设计文档/
  │   ├── 01-ETL引擎设计.md          # ⏳ 待创建
  │   └── 02-医学NLP设计.md          # ⏳ 待创建
  └── README.md                       # ✅ 当前文档

🔗 依赖的通用能力

  • LLM网关 - 医学NER提取云端版
  • 文档处理引擎 - Excel/Docx读取
  • ETL引擎 - 数据清洗和转换
  • 医学NLP引擎 - 实体识别(单机版)

🎯 商业模式

目标客户: 临床科室、数据管理员
售卖方式: 独立产品
定价策略: 按项目数或一次性License


⚠️ 技术难点

  1. 大数据处理 - 百万行数据的内存管理
  2. 隐私保护 - 单机版必须100%本地化
  3. NER准确率 - 医学术语复杂

最后更新: 2025-11-06
维护人: 技术架构师